Display Signal Circuit Between Television Display Assembly and Navigation Receiver Assembly

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (w/ USB Audio System): Display Signal Circuit between Television Display Assembly and Navigation Receiver Assembly
- Display Signal Circuit between Television Display Assembly and Navigation Receiver Assembly

DESCRIPTION

This circuit sends a DVD image signal from the television display assembly to the navigation receiver assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - TELEVISION DISPLAY)

(a) Disconnect the I35 navigation receiver assembly connector.





(b) Disconnect the U2 television display assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK TELEVISION DISPLAY ASSEMBLY

(a) Reconnect the U2 television display assembly connector.





(b) Measure the waveform according to the table below.

OK:





HINT
The waveform pattern may differ from that shown in the illustration below due to differences in the oscilloscope setting. A normal television display assembly operating condition can be determined if any waveform is output.

(c) Using an oscilloscope, check waveform.





Measurement Condition





NOTICE:
The video waveform changes according to the image output from television display assembly to navigation receiver assembly, but the synchronization signal does not change.

NG -- REPLACE TELEVISION DISPLAY ASSEMBLY Removal

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table